FORCEFUL - On crowded streets, where flashing emergency lights are not always obvious, the SoundAlert siren always gets noticed. Equipped with a 100W amplifier; wail, yelp, and hi-low tones; and an electronic air horn, this unit commands attention. | MORE CONTROL - Other systems give you the basics, our's gives you the best. With two 20 amp, on/off auxiliary switches, this unit is more than just an authoritative auditory warning device, it's the backbone of your entire emergency warning system. | HORN OVERRIDE - Finally, a siren system that focuses on your safety. Thanks to the integrated horn override function that activates your air horn with your stock horn button, you can keep your eyes on the road, and your mind on the task at hand. | RADIO REBROADCAST - Stay informed, even when your not in your vehicle. The helpful radio rebroadcast feature takes input from any other radio and routes it through your siren's loudspeaker so you can hear your GMRS, CB, or HAM radio wherever you are. | COMPACT POWER - At just over 2" thick, this extra slim siren speaker easily fits on your bumper or behind your grille, and with its street clearing 118 - 124 dB rating, it gets respect wherever it goes.